A multi-specification die casting general positioning and clamping jig

Abstract

The utility model discloses a kind of multi-specification die casting general positioning clamping jigs, it is related to multi-specification die casting jig technical field, it includes base, base inside is provided with sliding slot, and the middle part of sliding slot is provided with baffle, baffle both sides are provided with the slider matched with sliding slot, and the outside of slider is provided with adjusting mechanism, sliding slot both sides are provided with elastic supporting plate, and the top of slider is fixedly connected with moving plate, and the top of moving plate is provided with positioning clamping mechanism;Positioning clamping mechanism includes electric cylinder, clamping plate, clamping frame, and the top of moving plate is provided with adjustable clamping frame, and the top of clamping frame is provided with multiple electric cylinders, and the bottom of electric cylinder is provided with clamping plate, and by electric cylinder telescopic clamping plate cooperation supporting plate, the top of die casting is positioned and clamped, the utility model realizes the efficient, accurate clamping and positioning of different specifications die casting, help to improve production efficiency and processing quality.

Description

Technical Field

[0001] This utility model relates to the field of fixtures for multi-specification die-casting parts, and in particular to a universal positioning and clamping fixture for multi-specification die-casting parts. Background Technology

[0002] As an important type of mechanical part, die castings are increasingly becoming more diversified and personalized in terms of production needs. In order to improve production efficiency and ensure product quality, universal positioning and clamping fixtures play a crucial role in the processing of multi-specification die castings. A search revealed that Chinese patent document CN221390699U discloses a die-casting part processing fixture, including a fixture base, a fixing component and a clamp at the upper end of the fixture base, and a die-casting part at the upper end of the fixture base. The output end of a cylinder drives the clamping rod and clamping head to move downward, thereby fixing the top of the die-casting part and ensuring the stability of the die-casting part during processing. This die-casting part processing fixture has a reasonable design, but there are still some shortcomings in its structural design. Existing positioning and clamping fixtures are often designed for one or a few types of die castings. However, they are not suitable for die castings with large differences in shape and size, requiring the use of different specifications of clamping fixtures to meet the needs of different die castings. Secondly, due to the complex and diverse shapes of die castings, existing clamping fixtures often cannot guarantee accurate positioning and uniform force during the clamping process. Excessive clamping force may cause damage to the surface of the die casting, while insufficient clamping force may cause the die casting to loosen during processing, affecting processing accuracy and product quality. Utility Model Content

[0003] This utility model proposes a universal positioning and clamping fixture for multi-specification die-cast parts, which solves the problems of limited adaptability of existing positioning and clamping fixtures, as well as inaccurate clamping and positioning and uneven force.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A universal positioning and clamping fixture for multi-specification die-cast parts includes a base, a sliding groove inside the base, a baffle in the middle of the sliding groove, sliders matching the sliding groove on both sides of the baffle, an adjustment mechanism on the outside of the sliders, elastic support plates on both sides of the sliding groove, a movable plate fixedly connected to the top of the sliders, and a positioning and clamping mechanism above the movable plate. The positioning and clamping mechanism includes an electric cylinder, a clamping plate, and a clamping frame. An adjustable clamping frame is provided above the moving plate. Multiple sets of electric cylinders are provided on the top of the clamping frame, and clamping plates are provided at the bottom of each electric cylinder. The electric cylinders extend and retract the clamping plates in conjunction with the support plate to position and clamp the top of the die-cast part.

[0005] Preferably, a fixing plate is provided on the outer side of the base, and the fixing plate is provided with multiple sets of fixing holes inside.

[0006] Preferably, the adjustment mechanism includes a threaded hole, a lead screw, and a drive motor. The slider has a threaded hole inside, and both sides of the baffle are provided with lead screws that match the threaded holes. The lead screws pass through the threaded holes. Limit blocks are provided on both sides of the movable plate, and slides that match the limit blocks are provided on both sides of the base.

[0007] Preferably, a drive motor is fixedly installed on the side end of the slide, and the output end of the drive motor is connected to the lead screw.

[0008] Preferably, multiple sets of damping telescopic rods are provided on both sides of the slide groove at the top of the base, and a support plate is connected to the top of the damping telescopic rod, and a spring is provided on the outside of the damping telescopic rod.

[0009] Preferably, the positioning and clamping mechanism further includes a telescopic sleeve, a connecting hole, a screw hole, a threaded knob, a bolt, a miniature hydraulic cylinder, a positioning block, and a rubber pad. The telescopic sleeve is sleeved on the outside of the clamping frame. The telescopic sleeve is installed on the top of the moving plate by bolts. The telescopic sleeve has a connecting hole inside. The clamping frame has multiple sets of screw holes corresponding to the connecting hole on its side.

[0010] Preferably, the clamping frame is limited and connected to the inside of the screw hole through the threaded knob through the connecting hole, and a rubber pad is provided at the bottom of the clamping plate. Multiple sets of micro hydraulic cylinders are provided between the telescopic sleeves at the top of the moving plate, and a positioning block is connected to the movable end of the micro hydraulic cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This universal positioning and clamping fixture for multi-specification die castings has an adjustable clamping frame above the moving plate. By adjusting the height of the clamping frame, it can accommodate die castings of different heights, thereby meeting diverse production needs. At the same time, the moving block is driven by a drive motor, which enables the fixture to adapt to die castings of different specifications and sizes, improving the versatility and adaptability of the fixture.

[0012] 2. The number of clamping points has been increased. By rationally arranging the clamping points, it is ensured that the die-casting part receives a balanced clamping force in all directions, thereby effectively preventing shaking and displacement. At the same time, elastic support plates are set on both sides of the slide. The interaction between the elastic support plates and the clamping mechanism can ensure that the clamping force is evenly distributed, avoiding damage to the die-casting part caused by excessive local stress. Furthermore, through the telescopic positioning block of the micro hydraulic cylinder, the operator can flexibly adjust the position of the positioning block according to the positioning reference surface of the die-casting part to ensure accurate positioning and tight fit. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0015] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the clamping frame and telescopic sleeve structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the slide and baffle structure of this utility model.

[0018] The following are the labels in the diagram: 1. Base; 2. Slide rail; 3. Baffle; 4. Slider; 5. Support plate; 6. Moving plate; 7. Electric cylinder; 8. Clamping plate; 9. Clamping frame; 10. Fixing plate; 11. Threaded hole; 12. Lead screw; 13. Drive motor; 14. Damping telescopic rod; 15. Spring; 16. Fixing hole; 17. Telescopic sleeve; 18. Connecting hole; 19. Screw hole; 20. Threaded knob; 21. Bolt; 22. Miniature hydraulic cylinder; 23. Positioning block; 24. Rubber pad; 25. Slide rail; 26. Limiting block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0020] Reference Figures 1-5 This utility model provides a technical solution: a universal positioning and clamping fixture for multi-specification die-cast parts, including a base 1, a sliding groove 2 is provided inside the base 1, and a baffle 3 is provided in the middle of the sliding groove 2. Slider 4 matching the sliding groove 2 is provided on both sides of the baffle 3, and an adjustment mechanism is provided on the outside of the slider 4. Elastic support plates 5 are provided on both sides of the sliding groove 2, and a movable plate 6 is fixedly connected to the top of the slider 4.

[0021] Reference Figure 1 , Figure 3The base 1 has a fixing plate 10 on its outer side, and the fixing plate 10 has multiple sets of fixing holes 16 inside. The adjustment mechanism includes a threaded hole 11, a lead screw 12, and a drive motor 13. The slider 4 has a threaded hole 11 inside. Both sides of the baffle 3 have lead screws 12 that match the threaded holes 11, and the lead screws 12 pass through the threaded holes 11. The moving plate 6 has limit blocks 26 on both sides, and the base 1 has slides 25 that match the limit blocks 26 on both sides. The drive motor 13 is fixedly installed on the side of the slide groove 2, and the output end of the drive motor 13 is connected to the lead screw 12.

[0022] In practical implementation, when adjusting the universal positioning and clamping fixture for multi-specification die-casting parts, according to the specifications, dimensions, and height of the die-casting parts, first unscrew the threaded knob 20, manually raise or press the clamping frame 9, so that the clamping frame 9 moves up and down along the inner wall of the telescopic sleeve 17. After moving to the appropriate position, manually connect the threaded knob 20 through the connecting hole 18 to the screw hole 19, thereby realizing the height adjustment of the clamping frame 9. Next, start the drive motor 13, and the drive motor 13 drives the lead screw 12 to rotate inside the slide groove 2, thereby realizing the movement of the slider 4 on the outside of the lead screw 12 along the inner wall of the slide groove 2 through the internal threaded hole 11 to adapt to the positioning and clamping requirements of multi-specification die-casting parts. Since the top of the slider 4 is fixedly connected to the moving plate 6, and since the limiting blocks 26 on both sides of the moving plate 6 match the slide rail 25, the moving plate 6 drives the limiting blocks 26 to move synchronously along the inner wall of the slide rail 25 on both sides of the base 1, further ensuring the stability during adjustment. Through the above operations, the adaptability and clamping stability of the fixture are significantly improved. Example

[0023] Reference Figure 2 , Figure 4 This embodiment is an optimization based on Embodiment 1. A positioning and clamping mechanism is provided above the moving plate 6. The positioning and clamping mechanism includes an electric cylinder 7, a clamping plate 8, and a clamping frame 9. An adjustable clamping frame 9 is provided above the moving plate 6. Multiple sets of electric cylinders 7 are provided on the top of the clamping frame 9. The electric cylinders 7 can be of the YDG190 type, and each electric cylinder 7 is provided with a clamping plate 8 at its bottom. By increasing the number of clamping points, shaking and displacement of the die-casting part during clamping are effectively prevented. Furthermore, the electric cylinder 7 extends and retracts the clamping plate 8 in conjunction with the support plate 5 to position and clamp the top of the die-casting part.

[0024] Reference Figure 3 , Figure 4The positioning and clamping mechanism also includes a telescopic sleeve 17, a connecting hole 18, a screw hole 19, a threaded knob 20, a bolt 21, a miniature hydraulic cylinder 22, a positioning block 23, and a rubber pad 24. The telescopic sleeve 17 is sleeved on the outside of the clamping frame 9. The telescopic sleeve 17 is installed on the top of the moving plate 6 by bolts 21. The telescopic sleeve 17 has a connecting hole 18 inside. The clamping frame 9 has multiple sets of screw holes 19 corresponding to the connecting hole 18 on its side. The clamping frame 9 is limited and connected to the screw hole 19 by threaded knob 20 through the connecting hole 18. The bottom of the clamping plate 8 is provided with a rubber pad 24. The rubber pad 24 is provided to ensure that the clamping is firm and will not damage the surface of the die-casting part. Multiple sets of miniature hydraulic cylinders 22 are provided between the telescopic sleeves 17 at the top of the moving plate 6. The miniature hydraulic cylinders 22 can be of type HSE12-5, and the movable end of the miniature hydraulic cylinder 22 is connected to the positioning block 23.

[0025] Reference Figure 2 Multiple sets of damping telescopic rods 14 are provided on both sides of the slide groove 2 at the top of the base 1, and the top of the damping telescopic rods 14 are connected to the support plate 5. A spring 15 is provided on the outside of the damping telescopic rods 14.

[0026] In practice, when using a universal positioning and clamping fixture for multi-specification die-cast parts, the die-cast part is first placed on the surface of the support plate 5. After the position of the moving plate 6 is adjusted and the height of the clamping frame 9 is also adjusted, the micro hydraulic cylinder 22 is activated. The micro hydraulic cylinder 22 extends and retracts the positioning block 23, which can flexibly adjust the position of the positioning block 23 according to the positioning reference surface of the die-cast part to ensure accurate positioning and tight fit. After the positioning is adjusted, the electric cylinder 7 is activated. The electric cylinder 7 presses down the clamping plate 8 to clamp the die-cast part. During the pressing down of the clamping plate 8, the damping telescopic rod 14 and spring 15 at the bottom of the support plate 5 are deformed by pressure. At the same time, the elastic action of the damping telescopic rod 14 and spring 15 is used to avoid damage to the die-cast part caused by excessive local stress during the pressing down of the electric cylinder 7. At the same time, the damping telescopic rod 14 and spring 15 elastically support the support plate 5 and can also generate an appropriate amount of deformation as needed to adapt to the slight differences in the die-cast part. Through the above operations, the stability and positioning accuracy of the clamping are ensured.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A universal positioning and clamping fixture for multi-specification die-cast parts, comprising a base (1), characterized in that, The base (1) is provided with a sliding groove (2) inside, and a baffle (3) is provided in the middle of the sliding groove (2). A slider (4) matching the sliding groove (2) is provided on both sides of the baffle (3), and an adjustment mechanism is provided on the outside of the slider (4). An elastic support plate (5) is provided on both sides of the sliding groove (2), and a moving plate (6) is fixedly connected to the top of the slider (4). A positioning clamping mechanism is provided above the moving plate (6). The positioning and clamping mechanism includes an electric cylinder (7), a clamping plate (8), and a clamping frame (9). An adjustable clamping frame (9) is provided above the moving plate (6). Multiple sets of electric cylinders (7) are provided on the top of the clamping frame (9), and a clamping plate (8) is provided at the bottom of each electric cylinder (7). The electric cylinder (7) extends and retracts the clamping plate (8) in conjunction with the support plate (5) to position and clamp the top of the die-casting part.

2. The universal positioning and clamping fixture for multi-specification die-casting parts according to claim 1, characterized in that, The base (1) is provided with a fixing plate (10) on the outside, and the fixing plate (10) is provided with multiple sets of fixing holes (16).

3. The universal positioning and clamping fixture for multi-specification die-casting parts according to claim 1, characterized in that, The adjustment mechanism includes a threaded hole (11), a lead screw (12), and a drive motor (13). The slider (4) is provided with a threaded hole (11). Both sides of the baffle (3) are provided with lead screws (12) that match the threaded hole (11). The lead screws (12) pass through the threaded hole (11). Limit blocks (26) are provided on both sides of the moving plate (6). The base (1) is provided with slides (25) that match the limit blocks (26) on both sides.

4. The universal positioning and clamping fixture for multi-specification die-casting parts according to claim 3, characterized in that, A drive motor (13) is fixedly installed on the side end of the slide (2), and the output end of the drive motor (13) is connected to the lead screw (12).

5. The universal positioning and clamping fixture for multi-specification die-casting parts according to claim 1, characterized in that, Multiple sets of damping telescopic rods (14) are provided on both sides of the slide (2) at the top of the base (1), and a support plate (5) is connected to the top of the damping telescopic rod (14). A spring (15) is provided on the outside of the damping telescopic rod (14).

6. The universal positioning and clamping fixture for multi-specification die-casting parts according to claim 1, characterized in that, The positioning and clamping mechanism also includes a telescopic sleeve (17), a connecting hole (18), a screw hole (19), a threaded knob (20), a bolt (21), a micro hydraulic cylinder (22), a positioning block (23), and a rubber pad (24). The telescopic sleeve (17) is sleeved on the outside of the clamping frame (9). The telescopic sleeve (17) is installed on the top of the moving plate (6) by bolts (21). The telescopic sleeve (17) has a connecting hole (18) inside. The clamping frame (9) has multiple sets of screw holes (19) corresponding to the connecting hole (18) on its side.

7. The universal positioning and clamping fixture for multi-specification die-casting parts according to claim 6, characterized in that, The clamping frame (9) is connected to the screw hole (19) through the threaded knob (20) through the connecting hole (18) and the bottom of the clamping plate (8) is provided with a rubber pad (24). Multiple sets of micro hydraulic cylinders (22) are provided between the telescopic sleeves (17) at the top of the moving plate (6), and the movable end of the micro hydraulic cylinder (22) is connected with a positioning block (23).

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